公开(公告)号：US07171811B1

公开(公告)日：2007-02-06

申请号：US11238287

申请日：2005-09-29

Applicant: David M. Berchowitz ,  Yong-Rak Kwon

Inventor： David M. Berchowitz ,  Yong-Rak Kwon

IPC: F01B29/10

CPC classification number: F02G1/0435 ,  F02G1/044 ,  F02G2243/20

Abstract: An improved, free-piston, Stirling machine having at least three pistons series connected in an alpha Stirling configuration. Each cylinder is stepped so that it has a relatively larger diameter interior wall and a coaxial, relatively smaller diameter interior wall. Each piston is also stepped so that it has a first component piston having an end face facing in one axial direction and matingly reciprocatable in the smaller diameter cylinder wall and a second component piston having an end face facing in the same axial direction and matingly reciprocatable in the larger diameter, cylinder wall. One of the piston end faces bounds the compression space and the other end face bounds the expansion space. Preferably, each stepped piston has peripheral, cylinder walls that are axially adjacent and joined at a shoulder forming the end face of the larger diameter component piston. Stirling machines with these stepped features are also arranged in various opposed and duplex configurations, including arrangements with only one load or prime mover for each opposed pair of pistons. Improved balancing or vibration reduction is obtained by connecting expansion and compression spaces of a four cylinder in-line arrangement in a 1, 3, 2, 4 series sequence. Three cylinder embodiments provide a highly favorable volume phase angle of 120° and are advantageously physically arranged with three, parallel, longitudinal axes of reciprocation at the apexes of an equilateral triangle.

Abstract translation: 一种改进的自由活塞斯特林机器，具有至少三个以阿尔斯特朗配置连接的活塞。 每个气缸是阶梯式的，使得其具有相对较大直径的内壁和同轴的，相对较小直径的内壁。 每个活塞也是阶梯式的，使得其具有第一部件活塞，其第一部件活塞具有面向一个轴向方向的端面，并且在较小直径的气缸壁中可配合地往复运动;以及第二部件活塞，其端面面向相同的轴向方向并配合地往复运动 直径较大，气缸壁。 活塞端面中的一个限定压缩空间，另一个端面限定了膨胀空间。 优选地，每个阶梯式活塞具有周向的圆柱壁，其轴向相邻并且在形成较大直径部件活塞的端面的肩部处接合。 具有这些阶梯特征的斯特林机器也布置成各种相对的和双重的构造，包括仅对于每对相对的活塞只有一个载荷或原动机的布置。 通过将1,4缸的在线排列的扩展和压缩空间连接在1,2,3,4,4个系列序列中来获得改进的平衡或减振。 三缸实施例提供了120度的非常有利的体积相位角，并且有利地物理地布置有在等边三角形的顶点处具有三个平行的纵向的纵向轴线。

公开(公告)号：US5003777A

公开(公告)日：1991-04-02

申请号：US544196

申请日：1990-06-25

Applicant: David M. Berchowitz

Inventor： David M. Berchowitz

IPC: F02G1/043 ,  F02G1/053 ,  F16F9/02 ,  F16F9/48

CPC classification number: F16F9/0209 ,  F02G1/0435 ,  F02G1/053 ,  F16F9/48 ,  F02G2270/30

Abstract: In a free piston Stirling machine, a gas spring apparatus for applying two distinctly different spring rates to the displacer during the displacer's excursion past a center point in opposite ends of the work space. The apparatus comprises a cylinder formed in a gas spring housing, in which a gas spring piston is slidably mounted. On opposite sides of the gas spring piston there are two unequal volume gas spring chambers. Between the gas spring chambers there is a bleed hole which divides the cylinder into the two chambers and allows communication between the gas spring chambers and a gas reservoir. While the piston is compressing one gas spring chamber, the opposite is in communication with the gas reservoir and vise versa. This creates two distinctly different spring rates applied to the displacer. The two different forces increase and decrease the acceleration of the displacer which creates a more efficient sweeping of the working gas between the hot and cold space, thereby increasing the efficiency and work of the machine.

Abstract translation: 在自由活塞斯特林机器中，一种气体弹簧装置，用于在置换器的偏移过程中通过工作空间相对端的中心点将两种明显不同的弹簧速率施加到置换器。 该装置包括形成在气弹簧壳体中的气缸，气弹簧活塞可滑动地安装在气缸内。 在气弹簧活塞的相对侧有两个不等体积的气弹簧室。 在气体弹簧室之间有一个排气孔，该排气孔将气缸分成两个室，并允许气体弹簧室和气体储存器之间的连通。 当活塞压缩一个气体弹簧室时，相反的是与气体储存器连通，反之亦然。 这产生了应用于置换器的两种明显不同的弹簧刚度。 两种不同的力增加和减少置换器的加速度，从而在热空间和冷空间之间产生更有效的工作气体清扫，从而提高机器的效率和工作。

公开(公告)号：US4395880A

公开(公告)日：1983-08-02

申请号：US242453

申请日：1981-03-11

Applicant: David M. Berchowitz

Inventor： David M. Berchowitz

IPC: F02G1/044 ,  F02G1/06

CPC classification number: F02G1/044 ,  F02G2244/50 ,  F02G2253/03 ,  F02G2254/30 ,  F02G2270/50 ,  Y10T74/19098 ,  Y10T74/1959

Abstract: A mechanical device for effecting a phase change between the expansion and compression volumes of a double-acting Stirling engine uses helical elements which produce opposite rotation of a pair of crankpins when a control rod is moved, so the phase between two pairs of pistons is changed by +.psi. and the phase between the other two pairs of pistons is changed by -.psi.. The phase can change beyond .psi.=90.degree. at which regenerative braking and then reversal of engine rotation occurs.

Abstract translation: 用于实现双作用斯特林发动机的膨胀和压缩体积之间的相变的机械装置使用螺旋元件，当控制杆移动时，螺旋元件产生一对曲柄销的相反旋转，因此两对活塞之间的相位发生变化 通过+ psi，另外两对活塞之间的相位被-psi改变。 相位可以改变超过psi = 90°，在此时发生再生制动，然后发生反转。

公开(公告)号：US20130042607A1

公开(公告)日：2013-02-21

申请号：US13210704

申请日：2011-08-16

Applicant: David M. Berchowitz

Inventor： David M. Berchowitz

IPC: F02G1/044

CPC classification number: F02G1/045 ,  F02G1/0435 ,  F02G2244/12 ,  F02G2280/10

Abstract: An opposed piston gamma type Stirling machine has its displacer driven by a linear electromagnetic transducer that is drivingly linked to the displacer and is located on the opposite side of the power piston's axis of reciprocation from the displacer preferably in the bounce space. The linear transducer is controlled by an electronic control as a function of sensed inputs of Stirling machine operating parameters. In addition to allowing improvements in stability and efficiency, such a Stirling machine operated as a cooler/heat pump can also be controlled so that its displacer can be driven at (1) a phase angle that pumps heat in one direction through the machine or (2) at another phase angle that pumps heat in the opposite direction through the machine and allows selectively switching between the heat pumping directions.

Abstract translation: 相对的活塞γ型斯特林机器的排量由驱动地连接到置换器的线性电磁换能器驱动，并且位于动力活塞的轴向上，优选地在反弹空间中与排量器往复运动。 线性传感器由电子控制控制，作为斯特林机器运行参数的感测输入的函数。 除了允许改进稳定性和效率之外，还可以控制作为冷却器/热泵操作的这样的斯特林机器，使得其置换器可以在（1）沿一个方向泵送热量的相位角驱动机器或（ 2）处于另一相位角，其通过机器沿相反方向泵送热量，并且允许在热泵送方向之间有选择地切换。

公开(公告)号：US07692339B2

公开(公告)日：2010-04-06

申请号：US12026189

申请日：2008-02-05

Applicant: David M. Berchowitz ,  Mamoru Saito

Inventor： David M. Berchowitz ,  Mamoru Saito

IPC: H02K41/00 ,  F04B17/00

CPC classification number: F25B9/14 ,  F01B11/007 ,  F01B23/10 ,  F02G1/0435 ,  F02G2280/10 ,  F25B2400/073 ,  H02K7/1884 ,  H02K33/16

Abstract: To provide a less expensive and high-efficient free-piston Stirling cycle machine with an outer diameter of entire machine being relatively small. In a Stirling cycle cooler as a free-piston Stirling cycle machine including a cylinder 7, a piston 18 which is reciprocable inside said cylinder 7 and an electromagnetic driving mechanism 19 for reciprocating said piston 18, said electromagnetic driving mechanism 19 is comprised of a mover 20 and a stator 35, said piston 18 and said mover 20 formed by disposing a permanent magnets 24 outside an inner yoke 23 made of magnetic flux conducting material are disposed in an axial alignment, and said stator 35 and said cylinder 7 are disposed in an axial alignment. By this disposition, the outer diameter Rm of said mover 20 of said electromagnetic driving mechanism 19 can be reduced, and consequently the inner diameter Rs and the outer diameter of said stator 35 provided outside said mover 20, eventually the outer diameter of entire Stirling cycle cooler can also be reduced.

Abstract translation: 为了提供一种价格便宜且高效率的自由活塞斯特林循环机，整机的外径相对较小。 在作为自由活塞斯特林循环机的斯特林循环冷却器中，其包括气缸7，能够在所述气缸7内往复运动的活塞18和用于使所述活塞18往复运动的电磁驱动机构19，所述电磁驱动机构19由动子 20和定子35，通过将永磁体24设置在由磁通导电材料制成的内磁轭23外部而形成的所述活塞18和所述动子20被设置成轴向对准，并且所述定子35和所述气缸7设置在 轴向对齐。 通过该配置，可以减小所述电磁驱动机构19的所述动子20的外径Rm，并且因此设置在所述动子20外侧的所述定子35的内径Rs和外径最终为整个斯特林循环的外径 冷却器也可以减少。

公开(公告)号：US20090039655A1

公开(公告)日：2009-02-12

申请号：US12180088

申请日：2008-07-25

Applicant: David M. Berchowitz

Inventor： David M. Berchowitz

IPC: H02K7/18 ,  F02G1/043

CPC classification number: F02G1/043 ,  F02G1/053 ,  F02G2275/10 ,  F02G2280/10

Abstract: A beta-type free-piston Stirling cycle engine or cooler is drivingly coupled to a linear alternator or linear motor and has an improved balancing system to minimize vibration without the need for a separate vibration balancing unit. The stator of the linear motor or alternator is mounted to the interior of the casing through an interposed spring to provide an oscillating system permitting the stator to reciprocate and flex the spring during operation of the Stirling machine and coupled transducer. The natural frequency of oscillation, ωs, of the stator is maintained essentially equal to ωp ω p  1 - α p k p and the natural frequency of oscillation of the piston, ∩p, is maintained essentially equal to the operating frequency, ωo of the coupled Stirling machine and alternator or motor. For applications in which variations of the average temperature and/or the average pressure of the working gas cause more than insubstantial variations of the piston resonant frequency ωp, various alternative means for compensating for those changes in order to maintain vibration balancing are also disclosed.

Abstract translation: β型自由活塞斯特林循环发动机或冷却器驱动地连接到线性交流发电机或线性电动机，并且具有改进的平衡系统以最小化振动，而不需要单独的振动平衡单元。 线性电动机或交流发电机的定子通过插入的弹簧安装到壳体的内部，以提供振荡系统，允许定子在斯特林机器和耦合的换能器的操作期间使弹簧往复运动和弯曲。 定子的固有振荡频率ωω维持在基本上等于omegap $ 欧米茄 1 - p > ，活塞的固有振荡频率∩p基本上等于耦合斯特林机器的工作频率ωω， 交流发电机或电机。 对于其中工作气体的平均温度和/或平均压力的变化导致活塞共振频率ω的非实质变化的应用，也公开了用于补偿这些变化以维持振动平衡的各种替代方式。 27. 发明授权 Involute foil regenerator 失效 Title translation: Involute箔再生器 公开(公告)号：US06991023B2 公开(公告)日：2006-01-31 申请号：US10421273 申请日：2003-04-24 Applicant: David M. Berchowitz ,  Neill Lane ,  Todd Cale ,  James Gary Wood Inventor： David M. Berchowitz ,  Neill Lane ,  Todd Cale ,  James Gary Wood IPC: F28D17/00 CPC classification number: F28D17/02 ,  F25B2309/003 ,  F28D19/042 ,  Y10T29/4935 ,  Y10T29/49357 ,  Y10T29/49362 ,  Y10T29/49373 Abstract: A regenerator having a plurality of involute foils disposed in an annular gap between an inner cylindrical tube and an outer cylindrical tube. The involute shape of the foils provides uniform spacing throughout the entire regenerator and substantial surface area for fluid contact. Abstract translation: 一种再生器，其具有设置在内圆柱形管和外圆柱形管之间的环形间隙中的多个渐开线箔。 箔的渐开线形状在整个再生器中提供均匀的间隔，并且用于流体接触的实质表面积。 28. 发明授权 Angularly oscillating, variable displacement compressor 失效 Title translation: 倾斜摆动，可变排量压缩机 公开(公告)号：US5988994A 公开(公告)日：1999-11-23 申请号：US955081 申请日：1997-10-21 Applicant: David M. Berchowitz Inventor： David M. Berchowitz IPC: F04B1/02 ,  F02B75/04 ,  F04B35/01 ,  F04B35/04 ,  F04B49/12 ,  H02K7/075 CPC classification number: F02B75/044 ,  F02B75/048 ,  F04B35/04 ,  F04B49/12 ,  F04B2201/0206 ,  F04B2201/12041 Abstract: A pump or compressor wherein the volumetric displacement of a piston cylinder assembly is variable. The piston is connected to a crank slider or eccentric mechanical drive, the crankshaft of which oscillates alternately clockwise through a controllably variable angle .theta. and counterclockwise through substantially the same angle .theta., the angle .theta. being measured from the angular position of the crankshaft or eccentric at which separation between piston and the closed end of the bore is a minimum (Top Dead Center). The angle of crank oscillation controls the degree of volumetric displacement of the piston. The crank shaft is connected to a torsional spring so as to substantially resonate the rotational inertia of the moving parts. An oscillating electric motor supplies the oscillating torque to drive the mechanism at constant frequency but controllably variable angular amplitude. Abstract translation: 一种泵或压缩机，其中活塞气缸组件的体积位移是可变的。 活塞连接到曲柄滑块或偏心机械驱动器，曲轴通过可控地可变的角度θ和逆时针方向交替地顺时针旋转通过基本上相同的角度θ，角度θ是从曲轴或偏心的角位置测量的 活塞与孔的封闭端之间的分离是最小的（上止点）。 曲柄摆动角度控制活塞的体积位移程度。 曲柄轴连接到扭转弹簧，以便使运动部件的旋转惯性基本上共振。 振荡电动机提供振荡扭矩，以恒定频率驱动机构，但是可控地可变的角振幅。 29. 发明授权 Microminiature stirling cycle cryocoolers and engines 失效 Title translation: 微型斯特林循环制冷机和发动机 公开(公告)号：US5457956A 公开(公告)日：1995-10-17 申请号：US333356 申请日：1994-11-02 Applicant: Lyn Bowman ,  David M. Berchowitz ,  Israel Urieli Inventor： Lyn Bowman ,  David M. Berchowitz ,  Israel Urieli IPC: F02G1/04 ,  F02G1/043 ,  F25B9/00 ,  F25B9/14 ,  H01L23/34 ,  H01L23/44 ,  H01L49/00 ,  H05K7/20 ,  F01B29/10 CPC classification number: F02G1/0435 ,  F25B9/14 ,  H01L23/445 ,  F02G2250/31 ,  F02G2254/30 ,  F02G2258/10 ,  F25B2309/003 ,  F25B2400/15 ,  F25B2500/17 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/3011 ,  Y10T29/49229 Abstract: A microminiature Stirling cycle engine or cooler is formed utilizing semiconductor, planar processing techniques. Such a Stirling cycle thermomechanical transducer has silicon end plates and an intermediate regenerator. The end plates are formed with diaphragms and backspaces, one end plate forming the expansion end and the opposite end plate forming the compression end, with the regenerator bonded in between. A control circuit apparatus is linked to the diaphragms for controlling the amplitude, phase and frequency of their deflections. The control circuit apparatus is adapted to operate the transducer above 500 Hz and the passages and the workspace, including those within the regenerator, expansion space and compression space, are sufficiently narrow to provide a characteristic Wolmersley number, which is characteristic of the irreversibilities generated by the oscillating flow of the working fluid in the workspace, below substantially 5 at the operating frequency above 500 Hz. Additionally, the amplitude of the vibrations of the diaphragm vibrations are sufficiently small to provide the working fluid a maximum Mach number below substantially 0.1 at an operating frequency above 500 Hz. Abstract translation: 使用半导体，平面处理技术形成微型斯特林循环发动机或冷却器。 这种斯特林循环热机械换能器具有硅端板和中间再生器。 端板形成有隔膜和后空间，形成膨胀端的一个端板和形成压缩端的相对端板，再生器结合在其间。 控制电路装置连接到膜片，用于控制其偏转的幅度，相位和频率。 控制电路装置适用于在500Hz以上的传感器上操作，通道和工作空间（包括再生器，膨胀空间和压缩空间内的工作空间）足够窄以提供特征Wolmersley数，这是由 在工作空间中的工作流体的振荡流动，在500Hz以上的工作频率下基本上低于5。 此外，隔膜振动的振动的振幅足够小，以在500Hz以上的工作频率下使工作流体的最大马赫数大致低于0.1。 30. 发明授权 Stirling engine power regulation system 失效 Title translation: 斯特林发动机动力调节系统 公开(公告)号：US4805408A 公开(公告)日：1989-02-21 申请号：US67002 申请日：1987-06-29 Applicant: William T. Beale ,  David M. Berchowitz Inventor： William T. Beale ,  David M. Berchowitz IPC: F02G1/043 ,  F02G1/045 ,  F02G1/05 ,  F02G1/04 ,  F02G1/06 CPC classification number: F02G1/05 ,  F02G1/0435 ,  F02G1/045 ,  F02G2254/30 Abstract: The power output of a free piston Stirling engine is regulated by a valve in the gas flow path from the cold space through the regenerator to the hot space. The valve causes restriction of the gas flow path as in response to piston excursion beyond a selected excursion amplitude. Increased excursion causes increased restriction. The result is that, for piston excursions beyond the selected amplitude, the power out diminishes for increased stroke making the engine stable with any load from zero to maximum and avoiding runaway. Abstract translation: 自由活塞斯特林发动机的动力输出由从冷空气通过再生器到热空间的气体流动路径中的阀来调节。 阀门响应于活塞偏移超过选定的偏移幅度，导致气体流动路径的限制。 越来越多的旅行增加了限制。 结果是，对于超过所选幅度的活塞偏移，对于增加的行程，功率消耗减小，使得发动机在任何负载从零到最大时都是稳定的，并且避免失控。 PDF内容 加载中... Patent Agency Ranking Scan to Join $